Samuel bernstein



2 Sheets-Sheet 1.

(No Model.)

'S. BERNSTEIN.

WATER HEATER II I - S. BERNSTEIN.

WATER HEATER.

No. 429,300.. Patented June 3, 1890.

UNITED STATES PATENT OFFICEe SAMUEL BERNSTEIN, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE INSTANTA- NEOUS WATER HEATING COMPANY, OF SAME PLACE.

WATER-HEATER.

SPECIFICATION forming part of Letters Patent N0. 429,300, dated June 3, 1890.

Application filed October 15, 1889- Serial No. 327,059. (No model.)

To all whom it may concern.-

Be it known that I, SAMUEL BERNSTEIN, a citizen of the United States, residing at Ohicago, in the county of- Oook and State of Illinois, have invented a new and useful Im provement in WaterHeaters, of which the following is a specification.

My invention relates to an improvement in the class of apparatus known under the term instantaneous water-heater, and designed especiallyfor heating cold water as rapidly as it passes through the apparatus, thereby to afford convenient means where hot-Water circulation is either not provided or is temporarily out of use for readily heating Water for the bath, or for other purposes, by simply igniting the burner (gas, gasoline, oil, or the like) at the base of the heater and admitting to the latter the cold-Water supply.

My improvement relates more particularly to the aforesaid class of the apparatus as represented by the Douglas Water-heater, for which Letters Patent of the United States No. 345,416 were issued on the 18th day of July, A. D. 1886.

The object of my invention is to provide a generally improved construction of device for producing the instantaneous heating of liquids, and with particular reference to the aforesaid Douglas heater my object is to simplify the construction, and more especially to provide a materially-larger heating-surface, thereby to effect more rapid and intense heating of the water in its passage through the apparatus.

In theaccompanying drawings, Figure 1 is a view in elevation of my improved apparatus. Fig. 2 shows the same in vertical sectional elevation. Fig. 3 is a section taken at the line 3 3 in Fig. 2,.and viewed-in the direction of the'arrows; and Fig. 4 is a plan view of the spraying device.

The apparatus comprises as its general construction an outer shell, preferably of circular shape in cross-section and cylindrical from its base part way up and tapering throughout the remainder of its extent, being open at its upper contracted end, and also, if desired, at its base; an inner tapering shell inside the outer shell and hermetically secured at its base thereto; another still shorter tapering shell inside the lastnamed shell closed at its base to thelatter and to the outermost shell, thus affording three conical cham bers tapering all in the same direction; a

burner at the base of the apparatus, and a spraying device communicating through the outermost chamber with the liquid-supply pipe andsuspended over the innermost shells, and adapted to direct the spray into the outermost and innermost said chambers.

A is the outer shell of sheet metal, cylindrical from its base upward throughout a part of its extent, and conical thence to its top, Where it should be provided with a cap 4, terminating in a contracted opening or chimney r. I

B is a conical sheet-metal shell hermetically joined or sealed around its base or wider end to the inner surface of the shell A, sufficiently high in the oylindricallower portion thereof to afford in its base a chamber beneath the inner shells large enough to accommodate the heat-generating device, whether the latter be adapted for burning gas, oil, or other fuel.

WVithin the shell B is a narrower and shorter sheet-metal conical shell 0, having a bottom q, through which it communicates by a T- coupling 9 with a pipe 0, extending across the interior of the shell B, and leading at opposite ends through the latter, the shell 0 terminating at its upper end at or near the termination of the shell B, to which it may be E is the water-supply pipe, extending through the shell A (beyond which it contains a valve m) into the chamber D and upward in the latter beyond the shells B and C,where it supports a spraying device F, adapted to spray the water into the chambers D and D and to that end comprising, as the preferred construction, an annular tube 1, provided with numerous small perforations in its under side and supported from the head a, at which the spraying device is coupled to the pipe E, by tubular arms Z, and a tubular extension 7t, leading from the junction of the arms Z downwardinto the chamber D and provided therein with lateral minute perforations.

The apparatus as thus described may have employed with it for generating the required heat any suitable kind of furnace-such as agas or an oil burner; hence I do not limit my improvement to the use of any particular kind pr construction of device for supplying the mat.

The burner shown involves no features of novelty, being an old and well-known form of gasoline-burner for generating and burning gas from gasoline, and therefore need not be minutely described as to all of its details, being merely selected for illustration as one of the various kinds of burners I use, and particularly to show that gasoline may serve as the fuel for my purpose.

The burner illustrated involves an annular tube G, having perforations throughout its upper side and supported in the chamber afforded by the cylindrical portion of the shell A, and should be located, as shown, adjacent to the junction with the outer shell of the shell 15. Below the tube G and communicating with it through a pipe h is the generator I for converting the gasoline into avapor or gas, the supply of the latter through the tube h being controlled by a valve g and of the gasoline to the converter or generator by means of a pin-valve g, and the supply of gasoline is provided in a reservoir H on the upper end of a pipe f, leading through the shell A near its base and having a branch f, affording communication between it and the generator.

When a gasoline-burning appliance such as that described is employed, I provide, as usual, underneath it a kindling-pan c to receive the supply of the oil to be burned for initially heating to start the generation of gas in the generator I.

A drip-pan (1 should be located directly below the shell 0 to receive any moisture formed by condensation on the outside of the latter, and it communicates through a pipe (I with a similar drip-pan d at the base of the apparatus, and into which also may be led through a spout c moisture condensed on the inner surface of the shell B and inter cepted by a trough c.

The operation is as follows: The burner being lighted, the flames from the numerous perforations in the ring G and the heat from the flames strike the inner surface of the shell 13, the outer surface and base of the shell 0, and pass upward through the chamber D, rapidly and intensely heating the surfaces with which the heat comes into eontaet. The flow of water is then admitted through the-pipe E, and emerges in a line spray from the perforations in the parts Z and k of the sprayin g device F, respectively,

against the outer surface of the shell B and inner surface of the shell 0, absorbing heat from those surfaces as it flows down them on the shell 13 into the channel at its base formed by the junction thereof with the outer shell and on the shell 0 to its base q, whence it passes through the pipe 0 into the chamber D, mixing with the contents. thereof, which are permitted to escape through the spout n.

WVhat I claim as new, and desire to secure by Letters Patent, is

1. In a water-heater, the combination of an outer shell A, an inner shell 0, closed at its base to the furnace, and an intermediate shell B, sealed at its base to the shell A, chambers D, D, and D afforded by the said shells, a pipe 0, connecting the chambers D and D, a spraying device suspended in the shell A to direct its spray into thechambers D and D and a furnace in the base of the heater, communicating with the chamber D, substantially as and forthe purpose set forth.

2. In a water-heater, the combination of an outer shell A, an inner shell 0, closed at its base to the furnace, and an intermediate shell 13, sealed at its base to the shell A, chambers D and D intercommunicating near their bases, and a chamber D, afforded by the said shells, a pipe o, connecting the chambers D and D a spraying device suspended in the shell A to direct its spray into the chambers D and D and a furnace in the base of the heater, communicating with the chamber D, substantially as and for the purpose set forth.

3. In awater-heater, the combination of an outer shell A, an inner shell C, havinga base q, and an intermediate shell B, sealed at its base to the shell A, chambers D, D, and D afforded by the said shells, a pipe 0, communicating with the chamber D through the base q and leading at opposite ends through the shell B into the chamber D, a spraying device suspended in the shell A to direct its spray into the chambers D and D and a fur nace in the base of the heater, communicatin g with the chamber D, substantially as and for the purpose set forth.

4. In a water-heater, the combination of an outer shell A, an inner shell 0, closed at its,

base to the furnace, and an intermediate shell B, sealed at its base to the shell A, chambers D, D, and D afiorded by the said shells, a pipe 0, connecting the chambers D and D a spraying device F, having a perforated tube Z and a perforated tubular extension 70, the spraying device being suspended to communicate with the water-supply, with its tube Z leading into the chamber D and its extension in leading into the chamber Dianda furnace in the base of the heater, communicating with a the chamber D, substantially as and for the purpose set forth.

5. In awater-heater, the combination of an outer shell A, an inner shell 0, having abase q, and an intermediate shell B, sealed at its base to the shell A, chambers D, D, and D afiorded by the said shells, a pipe 0, commu- D and a furnace in 'the base of the heater, nicating with the chamber D through the communicating With the chamber D, sub- 10 base q and leading at opposite ends through stantially as and for the purpose set forth. the shell B into the chamber D, awater-con- 5 veying pipe E, passing upward through the SAMUEL BERNSTEIN chamber D beyond the chambers D and D In presence ofa spraying device F, suspended from the pipe W. H. DYRENFORTH, E to direct its sprayint-o the chambers D and M. J. FROST. 

